HTTP 错误 302 无限循环错误，即使它可以在 Chrome 中访问

Question

我正在尝试使用 urllib.request 访问 link 但它显示此错误

Traceback (most recent call last):
  File "/data/user/0/ru.iiec.pydroid3/files/accomp_files/iiec_run/iiec_run.py", line 31, in <module>
    start(fakepyfile,mainpyfile)
  File "/data/user/0/ru.iiec.pydroid3/files/accomp_files/iiec_run/iiec_run.py", line 30, in start
    exec(open(mainpyfile).read(),  __main__.__dict__)
  File "<string>", line 7, in <module>
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 222, in urlopen    return opener.open(url, data, timeout)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 531, in open
    response = meth(req, response)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 640, in http_response
    response = self.parent.error(
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 563, in error
    result = self._call_chain(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 502, in _call_chain
    result = func(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 755, in http_error_302
    return self.parent.open(new, timeout=req.timeout)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 531, in open
    response = meth(req, response)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 640, in http_response
    response = self.parent.error(
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 563, in error
    result = self._call_chain(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 502, in _call_chain
    result = func(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 755, in http_error_302
    return self.parent.open(new, timeout=req.timeout)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 531, in open
    response = meth(req, response)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 640, in http_response
    response = self.parent.error(
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 563, in error
    result = self._call_chain(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 502, in _call_chain
    result = func(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 755, in http_error_302
    return self.parent.open(new, timeout=req.timeout)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 531, in open
    response = meth(req, response)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 640, in http_response
    response = self.parent.error(
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 563, in error
    result = self._call_chain(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 502, in _call_chain
    result = func(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 755, in http_error_302
    return self.parent.open(new, timeout=req.timeout)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 531, in open
    response = meth(req, response)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 640, in http_response
    response = self.parent.error(
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 563, in error
    result = self._call_chain(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 502, in _call_chain
    result = func(*args)
  File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.8/urllib/request.py", line 744, in http_error_302
    raise HTTPError(req.full_url, code,
urllib.error.HTTPError: HTTP Error 302: The HTTP server returned a redirect error that would lead to an infinite loop.
The last 30x error message was:
Found

我尝试了很多方法但无法访问它，但在 chrome 中打开时它可以正常工作。

参考代码是-

import urllib.request

url="###"
webUrl  = urllib.request.urlopen(url)   
data = webUrl.read()        
print(data)

我尝试使用 cookies 方法，但仍然不起作用:'(

P.S如果可以的话，请为这个问题推荐一个“不那么可疑的网站”

Answer 1

好的，这似乎是因为应该 return 重定向列表的 302 错误 return 是一个空列表。我认为这是阻止脚本访问的不寻常尝试。您可以在会话中使用 user-agent 字符串模拟浏览器。我正在使用请求模块，因为它更容易

import requests as req

url = "###"

session = req.Session()
session.headers.update({'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36'})

r = session.get(###)
print(r.status_code)
print(r.content)

您可以使用此脚本看到空的 302 响应

import requests as req

r = req.get(###, allow_redirects=False)
print(r.status_code)
print(r.url)
print(r.history)

完成后不要忘记关闭 tcp 连接 session.close()

HTTP 错误 302 无限循环错误，即使它可以在 Chrome 中访问

HTTP Error 302 infinite loop error even though it is accessible in Chrome

urllib

python-3.x